Automatic cut-off valve.



M. KDENIG.

AUTOMATIC GUT-UFF VALVE.

(Application led Apr. B, 1901i) mi. `a|,|72.v A Patented Aug. 2o, lem..

(Ilo Model.)

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UNITED STATES PATENT OEETCE..

.MATTHEW KOENIG, OF NEW YORK, N. Y., ASSIGNOR OF ONE-THIRD TO OTTO SOHRODER, OFBOROUGH OF BRONX, NEW YORK, N. Y.

AUTOMATIC CUT-OFF VALVE.

SPECIFICATION forming part of Letters Patent No. 681,172, dated August 20, 1901.

Application tiled April 8,1901. Serial No. 54.778. (No model.)

To all wij/0717. it may concern:

, Beit known that LMATTHEW KoENrG,a citizen of the United States, residing in the bor ough of Manhattan, city, county, and State of New York, have invented certain new and usefullmprovements in Automatic Cut-Off Valves, of which the following is a specication.

My invention relates to that class of automatic cut-off valves which are held open l `.manually and which automatically 4cut 0E the flow of the uid when released from the hand of the user; and myimprovements con- `sist of certain novel features whereby the pressure of the fluid passing through the valve is made to operate the cut-off mechanism, as is hereinafter more particularly pointed out and claimed.

In the drawings, Figure 1 represents a lon gitudinal section of a hose-nozzle embodying my improved construction of valve. Fig. 2 is a cross-sectional view of the hose-nozzle,

, taken on the line x of Fig. l; and Fig. 3 is a cross-sectional view of the same, taken on the liney y of Fig. l.

Similar letters of reference designate similarparts in all the drawings.

A is the body of the valve, which in the drawings Ihave shown as being a hose-nozzle; but it will be readily understood that my im proved form of valve is also applicable to other forms of liquid-conducting conduits.

. The body A of the valve is provided with a hollow core or interior sleeve `B integral with the body A and containing a main slide- `valve C and a smaller` controlling-valve D,

a` stem d of which extends up through a side opening in the valve-body A and is covered by an elastic disk E, held in place by the coll 'l lar F, threaded into the body A. From the chamber Ga channel H extends through the body of the valve and connects with an an- `nular groove I in the nosepiece of the nozzle which opens into the interior of the nozzle through the channels J J. It will be seen that when the nosepiece K is screwedonto the body A an open channel will always be formed through the chamber Gr, channel H, groove I, and channels J J into the interior of the hose-nozzle without regard to the par ticular distance which the nosepiece may be turned in screwing it onto the body.

. When the fluid pressure-as, for instance, Water-enters the body of the valve, it forces up the valve D, and filling the chamber b forces the valve C forwardinto its seat, closing the `main outlet to the hose-nozzle. At the same time the pressure crowds the small valve D against its upper seat, thus effectually cutting E the water at both points. The pressure of the liquid will hold both these valves in position andwill keep the supply cut 0E until it may be desired to use it. When it is desired to use the water, the valve D is forced down by pressing upon the elas.-

\ tic disk E, thus closing its lower and opening its upper port. The pressure of the water will then force back the main valve O into `the chamber B, the water behind the valve finding escape through the upper port of the valve D, the chamber G, the channel H, the groove I, and the channels J J into the discharge-channel beyond the main valve. So long as the valve D is held down by the pressure, as ofthethumb, the main valve C will be kept open and the water will continue to ilow freely; but whenever the pressure is removed from the stem of the valve D the pressure of the water in the body of the valve will at once force the valve Dup into its upper seat, and the water passing through the lower port of the valve D will lill the chamber b and at once drive the main valve O forward into its seat, closing the main outletchannel.

`It will be seen that my improved form of valve is peculiarly suitablefor use with hose where it is desirable to have the water ready for instant use and also where to prevent waste it is desirable that the flow should be automatically cut off as soon as the water is no longer needed. This renders my improved device particularly suitable for breweries and factories, where much water is Wasted unless a simple and effective automatic cut-0E de vice is attached to the hose through which it is used; but I do not desire to limit myself to the use of my improved device in a hosenozzl'e, as it is manifest that it might be used in many other places for automatically cutting off the flow of liquid.

Having thus described my invention, what ent of the United States, is-

IOO

l. The combination, in an automaticallyclosing'valve, of a valve casing or shell provided with a main fluid-channel, a pressurechamber formed in an interior sleeve within said valve-casing, a main valve sliding in said pressure-chamber and adapted to close the main duid-channel, an inlet-port of less area than the main valve from the main iuidchannel behind the main valve into said pressure-chamber, an outlet-port from said pressure-chamber discharging beyond the main valve, a secondary piston-valve controlling said inlet and outlet ports and provided with an operating-stem extending through a lateral openingin the valve-casing,substantially as described.

2.' The combination, in an automaticallyclosing valve, of a valve casing or shell provided with a main duid-channel, a pressurechamber formed in an interior sleeve WithinV said valve-casing, a main valve sliding in said pressurechamber and adapted to close the main fluid-channel, an inlet-port of less area than the main valve from the main fluidchannel beh-ind the main valve into said pressure-chamber, an outlet-port from said pressure-chamber discharging beyond the main valve, a secondary piston-valve controlling said in-let and outlet ports and provided With an operating-stem extending through a latopening being provided with a iiexible covering over said valve-stem, substantially as described.

3. The combination, in an automaticallyclosing valve, of a valve casing or shell providedl with a main duid-channel, a pressurechamber formed i'n an interior sleeve Within said valve-casing, a main valve sliding in said pressure-chamber and adapted to close the main fluid-channel, an inlet-port of less area than the main valve from the main Huidchannel behind the main valve into said pressure-chamber discharging beyond the main valve, a secondary piston-valve controlling said inlet and outlet ports and provided With an operating-stein extending through a lateral opening in the Valve-casing, such lateral opening being provided With a iiexible covering composed of an elastic disk over said valve-stem, substantially as described.

` 4. The combination, in an automaticallyclosing valve, of a valve casing or shell provided With a main fluid-channel, a pressurechamber formed in an interior sleeve Within said valve-casing, a main valve sliding in said pressure-chamber and adapted to close the main fluid-channel, an inlet-port of less area than the main valve from the main tluid-channel behind the main valve into said pressurechamber', an outlet-port from said pressurechamber discharging beyond the main valve,

a secondary piston-valve controlling said inlet and outlet ports and provided with an op- @rating stem extending through a lateral opening in the valve-casing, such lateral open ing being provided with a flexible covering composed ot' an elastic disk over said valvestem, held in place by a threaded collar, substantially as described.

5. The combination, in an automaticallyclosing valve, of a valve casing or shell provided Withl a main duid-channel, a pressurechamber formed in an interior sleeve within said valve-Casin g, a main valve sliding in said pressure-chamber and adapted toclose the 6. The combination, with a valve casing or 5 shell, provided with main and secondary discharge-channels of a detachable nosepiece, adapted to be screwed into said valve-casing, and provided with a main discharge-channel, corresponding With the main discharge-channel of the valve-casing, and also provided with a secondary discharge-channel connecting with the secondary discharge-channel of the valve-casing and also with the main channel of the nosepiece at all points of relative Qrotation of the casing and nosepiece, substantially as described. v v sure-chamber, an outlet-port from said pres- 7. The combination, with a valve casing or shell, provided with main and secondary discharge-channels, of a detachable nosepiece, adapted to be screwed into said valve-casing,

and provided with a main discharge-channel, corresponding with the main dischargechannel of the valve-casing, and-also provided With a secondary channel formed by an annular groove connecting with the secondary discharge-channel of the valve-casing and also with the main channel of the nosepiece',

' through a discharge-duct, at all points 0f relative rotation of the casing and nosepiece, substantially as described.

I MATTHEW KOENIG. Witnesses:

WM. D. NEILLEY, KATHLEEN SNELL.

main fluid-channel, an inlet-port of less area than the main valve from the main duid-channel behind the main valve into said pressurechamber, an outlet-port from said pressurechamber' discharging through a channel in said valve-casing into the main fluid-channel beyond the main valve, a secondary pistonvalve controlling said inlet and outlet ports and provided with an operating-stem extendf ing through a lateral opening in the valvecasing, such lateral opening being provided with a flexible covering composed of an elastic disk over said valve-stem, held in place by a threaded collar, substantially as described. era-l opening in the valve-casing, such lateral 

